Branch point diagram display system
AssigneeDenso Corporation
InventorKiyohiko Sawada
Life of this patent
Estimating the term…
Abstract
A branch point diagram system includes a terminal disposed on a movable body for displaying a branch point diagram of a branch point and a delivery server for delivering branch road part to the terminal according to a delivery schedule when the terminal approaches a branch point. The delivery server calculates the delivery load of delivering the branch road part according to the schedule. In view of the calculation results of the delivery load, the delivery schedule is revised, and the branch road part is delivered to the terminal according to the revised schedule. The terminal then displays the branch point diagram for the branch point after generating the branch point diagram based on the branch road parts and positional data received from the delivery.
Claims32
A branch point diagram display system comprising:
- a terminal disposed on a movable body for displaying a branch point diagram of a branch point of a road;
- a delivery server for delivering data to the terminal at a position before the branch point;
- a branch point identification unit for identifying a plurality of branch points for which a corresponding branch point diagram is displayed;
- a branch road part store unit disposed in the delivery server for storing a plurality of branch road parts for generating the branch point diagram, wherein a branch road part fully represents a branch point;
- a delivery schedule making unit disposed in the delivery server for generating a delivery schedule that defines a delivery part as the branch road part delivered to the terminal at a position before the branch point and for generating an erase schedule that defines the delivery part to be erased at an erase time;
- a delivery load calculation unit disposed in the delivery server for calculating a delivery load of the delivery part to the terminal according to the delivery schedule;
- a change unit disposed in the delivery server for changing the delivery schedule according to the delivery load calculated by the delivery load calculation unit;
- a delivery unit disposed in the delivery server for acquiring and delivering the delivery part from the branch road part store unit to the terminal according to the delivery schedule;
- a branch point diagram making unit for generating the branch point diagram for each of the branch points identified by the branch point identification unit based on the branch road part delivered by the delivery unit for the branch point;
- and
- a branch point diagram display unit for displaying the branch point diagram generated by the branch point diagram making unit.
A terminal of a branch point diagram display system that receives data from a delivery server and the terminal disposed on a movable body, the terminal comprising:
- a branch point identification unit for identifying a plurality of branch points for which a corresponding branch point diagram is displayed;
- a branch point diagram making unit for generating the branch point diagram for each of the branch points identified by the branch point identification unit based on a branch road part received from the delivery server;
- and
- a branch point diagram display unit for displaying the branch point diagram generated by the branch point diagram making unit.
A delivery server of a branch point diagram display system, the delivery server delivering data to a terminal for displaying a branch point diagram, the delivery server comprising:
- a branch point identification unit for identifying a plurality of branch points for which a corresponding branch point diagram is displayed;
- a branch road part store unit for storing a plurality of branch road parts for generating the branch point diagram, wherein a branch road part fully represents a branch point;
- a delivery schedule making unit for generating a delivery schedule that defines a delivery part as the branch road part delivered to the terminal at a position before the branch point and for generating an erase schedule that defines the delivery part to be erased at an erase time;
- a delivery load calculation unit disposed for calculating a delivery load of the delivery part according to the delivery schedule;
- a change unit for changing the delivery schedule according to the delivery load calculated by the delivery load calculation unit;
- and
- a delivery unit for acquiring and delivering the delivery part from the branch road part store unit to the terminal according to the delivery schedule.
A method of displaying a branch point diagram at a vicinity of a branch point of a road, the method comprising:
- displaying a branch point diagram of a branch point of a road on a terminal;
- delivering data to the terminal at a position before the branch point;
- identifying a plurality of branch points for which a corresponding branch point diagram is displayed;
- storing a plurality of branch road parts for generating the branch point diagram;
- generating a delivery schedule for defining a delivery part as the branch road part delivered to the terminal at a position before the branch point and for generating an erase schedule that defines the delivery part to be erased at an erase time;
- calculating a delivery load of the delivery part to the terminal according to the delivery schedule;
- modifying the delivery schedule according to the delivery load calculated;
- acquiring and delivering the delivery part to the terminal according to the delivery schedule;
- and
- generating and displaying the branch point diagram for each of the branch points identified according to the branch road part delivered for the branch point.
A computer readable storage medium for storing a program for displaying a branch point diagram at a vicinity of a branch point of a road on a terminal, the program controlling a computer to serve as units comprising:
- a branch point identification unit for identifying a plurality of branch points for which a corresponding branch point diagram is displayed;
- a branch road part store unit for storing a plurality of branch road parts for generating the branch point diagram, wherein a branch road part fully represents a branch point;
- a delivery schedule making unit for generating a delivery schedule that defines a delivery part as the branch road part delivered to the terminal at a position before the branch point and for generating an erase schedule that defines the delivery part to be erased at an erase time;
- a delivery load calculation unit for calculating a delivery load of the delivery part according to the delivery schedule;
- a change unit for changing the delivery schedule according to the delivery load calculated by the delivery load calculation unit;
- a delivery unit for acquiring and delivering the delivery part from the branch road part store unit to the terminal according to the delivery schedule;
- a branch point diagram making unit for generating the branch point diagram for each of the branch points identified by the branch point identification unit based on the branch road part delivered by the delivery unit for the branch point;
- and
- a branch point diagram display unit for displaying the branch point diagram generated by the branch point diagram making unit.
Dependencies are inferred from the claim text.